Cultivator



J. M. FLEMING.

.CULTIVATOR.

APPLICATION HLED.,DEC. 6. 1920.

1,399,202, Patented Dec. 6, 1921.

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J-. M. FLEMING.

CULTIVATOR.

APPLICATION FILED mac. 6. 1920.

1,399,202, Patented Dec. 6, 1921.

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CULTI VATOR. APPLICATION'FILED DEC. 6. 1920.

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Patented Dec. 6, 1921.

J. M. FLEMING.

CULTIVATOR.

APPLICATION ,FILED DEC. 6. 1920.

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CULTIVATOR.

APPLICATION men 050. 6, 1920.

Patented Dec. 6, 1921.

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m M T UNITED STATES PATENT OFFICE.

CULTIVATOR.

Specification of Letters Patent,

PatentedDec. 6, 1921.

Application filed December 6, 1920. Serial No. 428,549.

To all whom it may concern:

Be it known that 1, JOHN M. FLEMING, a subject of the King of Great Britain, a resident of the city of Edmonton, Province of Alberta, Dominion of Canada, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

This invention relates to improvements in cultivators and the objects of the invention are to prepare the land (in'a single working) by disking, plowing, and pulverizing, so that a seed bed is obtained.

Further objects are to simplify thepreparation of the ground and save time and labor, to provide for the ready adjustment of the machine so that furrows of uniform depth can be obtained, and the depth varied to suit the ,type of soil being worked, to permit of the machine being readily and properly steered to provide adequate clearance to the pulverizing elements, so that should a stone be encountered there will be no-liability of any of the working parts breaking by impact with such stone, and generally to adapt the several parts to better perform the functions required of them.

With the above and other objects in view, the invention consists essentially of the improved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings:

Figure 1 is a perspective View of the improved" cultivator.

Fig. 2 is a longitudinal section of the same.

Fig. 3 is a plan view of the cultivator.

Fig. 4 is a side elevation of the improved cultivator.

Fig. 5 is a fragmentary plan view of the driving and furrow wheel, the driving wheel being in section.

Fig. 6 is a side elevation of the driving wheel showing the internal gear and coacting pinion.

Fig. 7 is a side elevation of the chain drive from the drivingowheel to the pulverizers.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings: A represents the improved cultivator comprising a frame 10, substantially rectangular in plan, the

improved side members of the frame having the front end slightly offset upwardly.

The side members of the frame carry downwardly extending lugs 11 forming bearings in which the transversely extending spindle, 12 is rotatably mounted, and on this spindle are a plurality of spaced disks 13.

On the upper face of the side members of the frame 10 I provide bearings 14, in which thetransversely extending shaftsl5'and 16 are rotatably mounted, the shaft 15 having a crank end 17 designed to rotatably engage the bull or driving wheellS.

This bull or-driving wheel is provided on the inner side with an internal gear 19 designed to mesh with a gear 20 rotatably mounted on the shaft 15, and onthe face of the gear 20 adjacent to the frame 10 a sprocket wheel 21 is rigidly attached.

The shaft 15 carries a lever 22 which is connected throughthe rod 23 with a lever 24 located at the rear end'of the frame 10.

The lever 24 is provided with a hand grip 25 connected through a link 26 with a detent 27 which coacts with a quadrant 28 rigidly mounted on the rearend of the frame 10 on which quadrant the lever 24 is pivoted. The detent 27 is normally pressed downwardly into contact with the quadrant 28 by a spiral spring 29 and is retracted by rotating the hand grip 25 toward the lever 24 thereby moving the link 26 and detent longitudinally. By actuating the lever 24' the shaft 15 may be rotated'so that the'frame of the machine will be lowered or elevatedrelatively to the bull or driving wheel 18. The shaft 16 is provided with a crank end 30 on which the furrow wheel 31 is rotatably mounted, and the shaft 16-is provided with a lever '32 connected through the link 33 with the lever 34 which is located on the rear end of the frame 10 and on that'side remotefrom the lever 24.

The lever 34 is provided with a hand grip 35 connected by a link 36 which is provided with a detent 37 adapted to coact' with the quadrant 38' which is mounted on the frame 10.

The lever 34 is pivoted to the quadrant 38 and on actuating the lever 34 it will be evident that the shaft 16 may be rotated so that the frame 10 of the machine will be elevated or lowered relatively to the furrow wheel 31.

At the rear of the disk 13 shares 39 are mounted, and provided with land sides 40, and the cutting edges 41 of the shares converge. The shares may be supported in any suitable manner and in the embodiment illustrated I have provided a transversely extending rod 42, while the rear of the shares are connected to a beam 43 and is attached to the front of the frame 10.

The rear end of the beam 43 is supported by a transversely extending rod 44, and shares 39 will have a resilient or springing action which will thus allow the share to clear rocks and large stones and better perform the functions required of it.

To the rear of the share 39 a guide plate 45 is provided having its lateral edges bent to form sides 46 which are secured to the side members of the frame 10, and the guide plate 45 has its upper edge 47 serrated. The side members of the frame are provided intermediate of their length and to the rear of the guide plate 45 with downwardly extending lugs 48 in which the transversely extendin spindle 50 is rotatably mounted, and t is spindle carries a pulverizing element 51 consisting of a drum having a plurality of radially projecting teeth 52. 7

One end of the spindle 50 has a bevel gear 53 mounted thereon which meshes with a bevel gear 54 mounted on the angularly disposed shaft 55, and this shaft is provided with a second bevel gear 56 which meshes with the beveled gear 57 carried by the transversely extending spindle 58 rotatably mounted in the bearings 59 which are slidably supported in the arcuate guides 60.

The arcuate guides 60 are closed at the upper end by a cap 61, and a spiral spring 62 is located between the said cap and the bearings 59, so that the spindle 58 is normally pressed toward the lower end of the arcuate guide.

On the spindle 58 a pulverizing element 63 is mounted comprising a drum, having a plurality of radially extending teeth 64,

and this pulverizing element rotates at a greater speed than the pulverizing element 51, thereby preventing any earth passing between the pulverizers without becoming broken up.

The shaft 55 is rotatably supported in the bearings 65 and 66 carried by the spindles 50 and 58 respectively. p

It will be evident by referring to the drawings that should a stone pass between the pulverizing elements then the upper pulverizing element is moved upwardly .be cause the bearings 59 will'follow the sinuosity of the guide 60, and during this move-, ment the bracket 66 will move the gear 56 llongitudinallyof the shaft 55 so that the said beveled gear will always mesh with the beveled gear 57, and, after a stone or other obstruction has passed between the pulverizing elements, the upper pulverizing element will be returned to its normal position under the action of the springs 62.

The upper pulverizing elements 63 is rotated by the chain drive 67 which engages with the sprocket wheel 21 on the shaft 15 and with the sprocket wheel 68 on the shaft 58. V

At the rear of the frame 10 a guide wheel 69 is provided and is rotatablysupported in the lower bifurcated end of the steering spindle 71 which is journaled in the bearing 72, the upper end of the spindle being provided with a hand wheel 73 which permits of the spindle being manually rotated.

Thedrivers seat 74 is also supported from the rear end of the frame 10 and is located adjacent to the hand wheel 73 and levers 24 and 35. 7

When this cultivator is in use it may be driven by any suitable source of power, such as a gasolene engine, or horse traction and when it is being drawn forwardly the disks 13 will cut the soil in parallel strips and the strips will be engaged by the shares 39 andthe sods will pass over the share and be delivered to the guide plate 45.

The sods will then pass between the upper and lower pulverizing elements and as the upper pulverizing element is rotated faster than the lower, the sods will be thoroughly broken up and thus prepare a seed bed.

Should a large stone or like obstruction pass between the pulverizing elements, the upper pulverizing element 63 will be moved upwardly in the arcuate guides 60 in the manner previously described, so that clearance will be given to the stones and there is no possibility of the pulverizers being broken. v

The depth of the furrows will be controlled by the height of the frame 10 relatively to the driving wheel 18 'and'the furrow wheel 31', this being accomplished by actuating the lever 24 thereby rotating the shaft 15, and as the end of the saidshaft is of crank formation the frame will be elevated or lowered depending on the adjustment required. The lever 34 is also actuated so that the frame 10 will be adjusted relatively to the furrow wheel 31, and thus the disks 13 out to the required depth in the ground and the share 39 will also turn the sod of the required length. 7

The steering is accomplished by actuating the hand wheel 73 and spindle 71' thereby rotating the wheel 69 through thedesired degree to give the necessary direction to the machine. 7

As many changes could be made in the above construction and many widely different embodiments of my invention within the scope of the claims, constructed without departing from the spirit or scope thereof,

it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

l. A cultivator comprising a frame, transversely extending shafts having crank ends, a driving wheel on one of the crank ends of one shaft, a furrow wheel on the crank end of another shaft, a guide wheel at the rear of the frame, and means for rotating the shaft carrying the driving wheel.

2-. A cultivator comprising a frame, disks carried by the frame, shares located rearwardly of the disks, pulverizing elements rearwardly of the shares, said pulverizers comprising a pair of spaced rollers having peripheral teeth, one of the rollers being adjustable relatively to the other, and resilient means for holding the adjustable rollers in a normal position relatively to the other roller.

3. A cultivator comprising a frame, disks rotatably mounted on the front of the frame, shares located rearwardly of the disks, pulverizing elements comprising a pair of spaced rollers, guides coacting with the upper roller to permit of the adjustment of the said rollers relatively to the other roller, and means for rotating the said rollers.

4. A cultivator comprising a frame, disks rotatably mounted at the front of the frame, shares located rearwardly of the disks, pulverizing elements located rearwardly of the shares, a driving wheel supporting one side of the frame, a furrow wheel supporting the opposite side of the frame, a guide wheel at the rear of the frame, means for adjusting the frame relatively to the other'driving and furrow wheels, and means for rotating the pulverizers from the driving wheel.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

JOHN M. FLEMING. Witnesses: 1

GLADYs G. CUFF, Lee. A. MARDICE. 

